Examine source code of Azumanga Daiyo

{
  "theme": {
    "images": {
      "theme_frame": "azumangafinal.jpg"
    },
    "colors": {
      "frame": "#ff6e6e",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Azumanga Daiyo",
  "manifest_version": 2,
  "description": "Tested with 1280x1024 VISTA Firefox. Please let me know if you find any issues with other sizes or OS."
}